6403948 has 12 divisors (see below), whose sum is σ = 11342520. Its totient is φ = 3163232.

The previous prime is 6403939. The next prime is 6403967. The reversal of 6403948 is 8493046.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9313 + ... + 9976.

It is an arithmetic number, because the mean of its divisors is an integer number (945210).

Almost surely, 2^6403948 is an apocalyptic number.

It is an amenable number.

6403948 is a deficient number, since it is larger than the sum of its proper divisors (4938572).

6403948 is a wasteful number, since it uses less digits than its factorization.

6403948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19376 (or 19374 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 6403948 is about 2530.6022998488. The cubic root of 6403948 is about 185.7017225652.

The spelling of 6403948 in words is "six million, four hundred three thousand, nine hundred forty-eight".